Web application security masterclass in Python (WASECM-PY)


Course Overview

Your Web application written in Python works as intended, so you are done, right? But did you consider feeding in incorrect values? 16Gbs of data? A null? An apostrophe? Negative numbers, or specifically -1 or -2^31? Because that’s what the bad guys will do – and the list is far from complete.

Handling security needs a healthy level of paranoia, and this is what this course provides: a strong emotional engagement by lots of hands-on labs and stories from real life, all to substantially improve code hygiene. Mistakes, consequences, and best practices are our blood, sweat and tears.

The curriculum goes through the common Web application security issues following the OWASP Top Ten but goes far beyond it both in coverage and the details.All this is put in the context of Python, and extended by core programming issues, discussing security pitfalls of the programming language.

So that you are prepared for the forces of the dark side.

So that nothing unexpected happens.


Who should attend

Python developers working on Web applications.


General Python and Web development.

Course Objectives

  • Getting familiar with essential cyber security concepts
  • Understanding how cryptography supports security
  • Learning how to use cryptographic APIs correctly in Python
  • Understanding Web application security issues
  • Detailed analysis of the OWASP Top Ten elements
  • Putting Web application security in the context of Python
  • Going beyond the low hanging fruits
  • Input validation approaches and principles
  • Managing vulnerabilities in third party components
  • Getting familiar with security testing techniques and tools

Outline: Web application security masterclass in Python (WASECM-PY)

Day 1

  • Cyber security basics
    • What is security?
    • Threat and risk
    • Cyber security threat types – the CIA triad
    • Consequences of insecure software
  • The OWASP Top Ten 2021
    • The OWASP Top 10 2021
    • A01 - Broken Access Control
      • Access control basics
      • Missing or improper authorization
      • Failure to restrict URL access
      • Lab – Failure to restrict URL access
      • Confused deputy
      • File upload
      • Open redirects and forwards
      • Cross-site Request Forgery (CSRF)
    • A02 - Cryptographic Failures
      • Information exposure
      • Cryptography for developers

Day 2

  • A02 - Cryptographic Failures (continued)
    • Cryptography for developers
    • Certificates
    • Transport security
  • A03 - Injection
    • Injection principles
    • Injection attacks
    • SQL injection
    • Code injection

Day 3

  • A03 - Injection (continued)
    • Input validation
    • HTML injection - Cross-site scripting (XSS)
  • A04 - Insecure Design
    • The STRIDE model of threats
    • Secure design principles of Saltzer and Schroeder
    • Client-side security

Day 4

  • A05 - Security Misconfiguration
    • Configuration principles
    • Server misconfiguration
    • Python configuration best practices
    • Cookie security
    • XML entities
  • A06 - Vulnerable and Outdated Components
    • Using vulnerable components
    • Assessing the environment
    • Hardening
    • Untrusted functionality import
    • Malicious packages in Python
    • Vulnerability management
  • A07 - Identification and Authentication Failures
    • Authentication
    • Session management
    • Password management

Day 5

  • A08 - Software and Data Integrity Failures
    • Integrity protection
    • Subresource integrity
  • A09 - Security Logging and Monitoring Failures
    • Logging and monitoring principles
    • Insufficient logging
    • Case study – Plaintext passwords at Facebook
    • Log forging
    • Lab – Log forging
    • Log forging – best practices
    • Logging best practices
    • Monitoring best practices
    • Firewalls and Web Application Firewalls (WAF)
    • Intrusion detection and prevention
    • Case study – The Marriott Starwood data breach
  • A10 - Server-side Request Forgery (SSRF)
    • Server-side Request Forgery (SSRF)
    • Case study – SSRF and the Capital One breach
  • Web application security beyond the Top Ten
    • Code quality
    • Denial of service
  • Security testing
    • Security testing techniques and tools
      • Code analysis
      • Dynamic analysis
    • Finding specific vulnerabilities
      • Cross-site scripting (XSS)
    • Password auditing
      • Using password cracking tools
      • Lab – Password audit with John the Ripper
    • Proxies and sniffing
      • Proxy servers and sniffers
      • Sniffing – tools and considerations
      • Lab – Using a proxy
  • Wrap up
    • Secure coding principles
    • And now what?

Prices & Delivery methods

Online Training

5 days

  • US$ 3,750
Classroom Training

5 days

  • United States: US$ 3,750

Click on town name or "Online Training" to book Schedule

This is an Instructor-Led Classroom course
Instructor-led Online Training:   This is an Instructor-Led Online (ILO) course. These sessions are conducted via WebEx in a VoIP environment and require an Internet Connection and headset with microphone connected to your computer or laptop.
This is a FLEX course, which is delivered simultaneously in two modalities. Choose to attend the Instructor-Led Online (ILO) virtual session or Instructor-Led Classroom (ILT) session.


Online Training Time zone: Europe/Berlin Enroll
Munich This is a FLEX course. Enroll
Online Training Time zone: Europe/Berlin Enroll
Online Training Time zone: Europe/Berlin Enroll